﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace NGUYENTHANHDONG.Excercise.Bai2
{
    class CONTROLLERS
    {
        MODEL mdl;

        public CONTROLLERS()
        {
            mdl = new MODEL();
        }

        public double KiemTra(Calculator cal)
        {
            return mdl.PhepTinh(cal);
        }

    }
}
